On particle-mesh coupling in monte carlo semiconductor device simulation

Improved nearest-grid-point and cloud-in-cell particle-mesh schemes are suggested, and a new nearest-elementcenter scheme proposed, to help reduce self force and improve the spatial accuracy of forces in Monte Carlo semiconductor device simulation. These schemes are exercised on both oneand two-dimensional model problems. An attempt to design a scheme with reduced self force for unstructured triangular meshes is unsuccessful. © 1996 IEEE.